11243231269 has 2 divisors, whose sum is σ = 11243231270. Its totient is φ = 11243231268.

The previous prime is 11243231213. The next prime is 11243231309. The reversal of 11243231269 is 96213234211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9828343044 + 1414888225 = 99138^2 + 37615^2 .

It is a cyclic number.

It is not a de Polignac number, because 11243231269 - 2⁷ = 11243231141 is a prime.

It is a super-2 number, since 2×11243231269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11243232269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621615634 + 5621615635.

It is an arithmetic number, because the mean of its divisors is an integer number (5621615635).

Almost surely, 2^11243231269 is an apocalyptic number.

It is an amenable number.

11243231269 is a deficient number, since it is larger than the sum of its proper divisors (1).

11243231269 is an equidigital number, since it uses as much as digits as its factorization.

11243231269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The spelling of 11243231269 in words is "eleven billion, two hundred forty-three million, two hundred thirty-one thousand, two hundred sixty-nine".